根据由劳动统计局的最新美国人时间使用调查，在2005年平均美国公民一天看电视的时间为2.6小时。
According to the latest American Time Use Survey by the Bureau of Labor Statistics, in 2005 the average U. S. citizen watched 2.6 hours of television a day.
用户可以查询撤销空间使用率，事务并发性，实例中最长的查询的运行时间等统计信息。
You can see statistics such as undo consumption rate, transaction concurrency, and lengths of queries run in the instance.
用户可以查询撤销空间使用率，事务并发性，实例中最长的查询的运行时间等统计信息。
You can see statistics such as undo consumption rate, transaction concurrency, and lengths of queries run in the instance.
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